The (not a tutorial, but I hope this helps) how-to guide
Before you begin, research mehndi styles and practice piping. This is a LOT of piping (for a cake this big) and will be much easier if you are comfortable with the piping before you begin.
Step 1. Mark the top of each tier with the circumference of the next tier (centred on the cake), cut a diagonal line around from it's original circumference to the smaller one. Cut the top tier to a point (building up with the cake you removed from the circumference!). Jam and butter cream/frosting all cakes.
Step 2. Cover the top of each cake.
Step 3. Stack the cakes (dowelling in between)
Marzipan the cake in 2 halves vertically (to taste, but it gives a better finish!). Buff the joining lines with the palm of your hand to smooth. Smooth all over the cake with a smoothing tool (or your hand if you don't have one).
Step 4. Moisten the marzipan all over (slightly) with a little water or a very small amount of jam. Cover in rolled out sugar paste 1/2 at a time (vertically).
Step 5. Leave to set a bit (preferably overnight) to reduce finger marks etc in the finished design.
Step 6. Pipe all over with lovely henna/mehndi designs!
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